Question

Glider with span of 2m is flying at 10000ft. If aspect ratio of tail is 10 then, determine reference area of the tail.

(a) 0.4m^2

(b) 0.4

(c) 0.8

(d) 0.8m^2

The question was posed to me during an internship interview.

My doubt is from Tail Geometry and Arrangement topic in section Airfoil and Geometry Selection of Aircraft Design

Answer 1

Right option is (a) 0.4m^2

The explanation is: Aspect ratio of tail = span square / area of tail

10 = 2*2 / area

Area = 4/10 = 0.4m^2.